Static Electricity Experiment Worksheet

Science experiments lesson 21: Static electricity: comb and paper bits · Set 41 · 40 questions

What you do (Rub and charge): 1. Tear a sheet of paper into tiny bits on a table. 2. Comb dry, clean hair quickly 10 times. 3. Hold the comb just above the paper bits and watch. 4. Try again with 20 combs, and count the bits each time.

1. 1.🔮 Predict: you wet the comb before trying again. What happens? (a) it becomes a magnet (b) it works better (c) it hardly works (d) it lights up
2. 2.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) dry hair (b) a magnet (c) a plastic comb (d) tiny paper bits
3. 3.True or false: a heavy book jumps to a charged comb. (a) False (b) True
4. 4.🧺 Which of these is not needed for the static comb? (a) dry hair (b) turmeric powder (c) a plastic comb (d) a balloon
5. 5.True or false: a pebble jumps to a charged comb. (a) True (b) False
6. 6.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is the one thing we change? (a) number of rubs (b) the same hair (c) paper bits picked up (d) distance to the paper
7. 7.🧺 Do we need a balloon for the static comb? (a) not needed (b) needed
8. 8.🛟 Static from a comb is safe. Which electricity must children never play with? (a) a rubbed plastic comb (b) a rubbed balloon (c) paper bits on a comb (d) plug points at home
9. 9.🛟 There is lightning outside. Where is it safest to be? (a) in an open field (b) on a rooftop (c) under a tall tree (d) indoors
10. 10.True or false: a pebble does not move to a charged comb. (a) False (b) True
11. 11.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “distance to the paper”? (a) we measure it (b) we change it (c) we keep it the same
12. 12.⚡ Which of these jumps to a charged comb? (a) a thin water stream (b) a brick (c) a heavy book (d) a steel spoon
13. 13.⚡ Which of these does not move to a charged comb? (a) puffed rice (b) a brick (c) thermocol bits (d) tiny paper bits
14. 14.📘 Rubbing moves tiny charges. What do we call the charge that builds up? (a) magnetism (b) static electricity (c) gravity (d) sunlight
15. 15.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) yeast (b) dry hair (c) a balloon (d) a plastic comb
16. 16.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is kept the same? (a) paper bits picked up (b) number of rubs (c) the same comb
17. 17.True or false: a thin water stream does not move to a charged comb. (a) False (b) True
18. 18.⚡ A rubbed comb is held near tiny paper bits. What happens? (a) jumps to the comb (b) does not move
19. 19.⚡ Why does the comb trick work best on a dry day? (a) water adds charge (b) wet hair is magnetic (c) dry days are noisy (d) damp air leaks charge
20. 20.True or false: a heavy book does not move to a charged comb. (a) False (b) True
21. 21.🧺 Which of these is needed for the static comb? (a) yeast (b) a mirror (c) a plastic comb (d) a magnet
22. 22.🔍 Which is the odd one out? (a) a brick (b) puffed rice (c) a pebble (d) a steel spoon
23. 23.🧺 Do we need vinegar for the static comb? (a) needed (b) not needed
24. 24.⚡ A rubbed comb is held near thermocol bits. What happens? (a) jumps to the comb (b) does not move
25. 25.⚡ A rubbed comb is held near dry hair. What happens? (a) does not move (b) jumps to the comb
26. 26.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? True or false: paper bits picked up is what we measure. (a) False (b) True
27. 27.⚡ A rubbed comb is held near a heavy book. What happens? (a) jumps to the comb (b) does not move
28. 28.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) tiny paper bits (b) dry hair (c) a battery cell (d) a plastic comb
29. 29.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “paper bits picked up”? (a) we keep it the same (b) we measure it (c) we change it
30. 30.⚡ A rubbed comb is held near a thin water stream. What happens? (a) does not move (b) jumps to the comb
31. 31.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? Which of these is what we measure? (a) the paper bit size (b) the same hair (c) paper bits picked up (d) the same comb
32. 32.True or false: a plastic comb is needed for the static comb. (a) True (b) False
33. 33.⚡ A rubbed comb is held near a pebble. What happens? (a) does not move (b) jumps to the comb
34. 34.🧺 Which of these is needed for the static comb? (a) dry hair (b) turmeric powder (c) a magnet (d) a battery cell
35. 35.🧺 Three of these are needed for the static comb. Which one is NOT needed? (a) a balloon (b) a plastic comb (c) tiny paper bits (d) turmeric powder
36. 36.⚡ Which of these does not move to a charged comb? (a) a thin water stream (b) a steel spoon (c) tiny paper bits (d) puffed rice
37. 37.True or false: tiny paper bits is not needed for the static comb. (a) False (b) True
38. 38.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “number of rubs”? (a) we change it (b) we measure it (c) we keep it the same
39. 39.⚖️ Fair test — does rubbing the comb more times pick up more paper bits? What do we do with “the same comb”? (a) we keep it the same (b) we change it (c) we measure it
40. 40.🧺 Which of these is not needed for the static comb? (a) a balloon (b) a plastic comb (c) dry hair (d) yeast

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